Zen of Sudoku was created in 2006.
Zen of Sudoku happened in 2006.
Rubik's Sudoku was created in 2006.
Sudoku Gridmaster was created on 2006-03-23.
Buku Sudoku was created on 2008-05-28.
Essential Sudoku DS was created on 2006-10-27.
The Compass of Zen was created in 1997.
Zen Habits was created in 2007.
Aeon Zen was created in 2008.
Ant-Zen was created in 1994.
ZEN V was created in 2006.
The Tao of Zen was created in 1994.
Zen Peacemakers was created in 1996.